Motor vehicle having a hybrid drive, and method for operating a hybrid drive

a hybrid drive and motor vehicle technology, applied in the direction of gas pressure propulsion mounting, propulsion parts, transportation and packaging, etc., can solve the problem of only being able to represent the drive-away behavior of a conventional motor vehicle in torque-controlled operation of an electro machine, and achieve the effect of high control performance and rise in the rotational speed of the electro machin
US8365851B2Active Publication Date: 2013-02-05ROBERT BOSCH GMBH
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Patents(United States)
Current Assignee / Owner
ROBERT BOSCH GMBH
Publication Date
2013-02-05

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Abstract

A method for operating a motor vehicle having a hybrid drive, including a combustion engine having an engine management and at least one electro machine having a control unit, which is at least intermittently operated in an rpm-regulated manner and which is able to be in operative connection with a drive shaft of the combustion engine. For the closed-loop speed control of the electro machine, its torque is influenced by its rotational speed or a signal derived therefrom.
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Description

FIELD OF THE INVENTION

[0001] The present invention is based on a method for operating a hybrid drive, and on a motor vehicle having a hybrid drive.BACKGROUND INFORMATION

[0002] Motor vehicles having a hybrid drive are discussed in the German patent document DE 10241018 A1, for example. Referred to as hybrid drives are drives in which at least one electro machine is provided in addition to a conventional internal combustion engine; depending on the design of a parallel hybrid drive, this electro machine can be coupled or is fixedly coupled to a drive shaft in the drive train of the motor vehicle and can operate both as generator or as motor. In generator operation, the electro machine is driven by the internal combustion engine and is thus able to generate electric current to supply electric loads of the motor vehicle. In motor operation, current is supplied from the vehicle battery in order to convert this current into driving energy for the motor vehicle or into starter energy for the...

Claims

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